CN110760134A - High-damping rubber composition material and preparation method thereof - Google Patents
High-damping rubber composition material and preparation method thereof Download PDFInfo
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- CN110760134A CN110760134A CN201911133414.0A CN201911133414A CN110760134A CN 110760134 A CN110760134 A CN 110760134A CN 201911133414 A CN201911133414 A CN 201911133414A CN 110760134 A CN110760134 A CN 110760134A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a high-damping rubber composition material, which comprises the following raw materials in parts by weight: 100 parts of butyl rubber, 20-50 parts of carbon black, 5-25 parts of polyisobutylene, 2-7 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-3 parts of dispersing agent, 2-5 parts of anti-aging agent, 1-2 parts of vulcanizing agent and 1-3 parts of accelerating agent.
Description
Technical Field
The invention relates to the field of rubber, in particular to a high-damping rubber composition material and a preparation method thereof.
Background
The high-damping rubber composition material is a rubber material for damping structural vibration and noise by utilizing the high elasticity of rubber, the damping treatment is called as damping shock absorption and can be divided into free damping treatment and constrained damping treatment, the free damping treatment is formed by sticking a layer of damping rubber on the surface of a structure, when the structure vibrates, the emulsion internal friction among rubber molecular chains consumes part of vibration energy, and the vibration is reduced; the latter is to stick a layer of damping rubber on the surface of the structure, stick a layer of restraint plate outside, when the structure is vibrated, the damping material is sheared, a part of vibration energy is changed into heat energy and the shock absorption function is widely used in the industries of aviation, shipbuilding, automobile, railway, building, textile, etc.;
however, the existing high-damping rubber composition material has no excellent processing performance, low damping coefficient and undesirable damping and noise reduction effects, so that the high-damping rubber composition material and the preparation method thereof are provided.
Disclosure of Invention
The invention aims to provide a high-damping rubber composition material and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the high-damping rubber composition material comprises the following raw materials in parts by weight: 100 parts of butyl rubber, 20-50 parts of carbon black, 5-25 parts of polyisobutylene, 2-7 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-3 parts of a dispersing agent, 2-5 parts of an anti-aging agent, 1-2 parts of a vulcanizing agent and 1-3 parts of an accelerator.
Preferably, the vulcanizing agent can be any one of sulfur-containing accelerator, benzoyl peroxide, quinone oxime compound, polysulfide polymer, urethane, and maleimide derivative.
Preferably, the stearic acid is slightly soluble in cold water, soluble in alcohol, acetone, and readily soluble in benzene, chloroform, diethyl ether, carbon tetrachloride, carbon disulfide, amyl acetate, and toluene.
Preferably, the polyisobutylene is 15 parts.
Preferably, the dispersant can be selected from one or more of an oxidized homopolymer, an ethylene-acrylic acid copolymer, an ethylene-vinyl acetate copolymer and a low molecular ionomer.
The preparation method of the high-damping rubber composition material is characterized by comprising the following steps of:
step one, preparing nitrile rubber, namely mixing and smelting a proper amount of isobutene and a small amount of isoprene to prepare the nitrile rubber for later use;
secondly, placing the prepared nitrile rubber into a plasticator for plastication, adding polyisobutylene, stearic acid, an anti-aging agent and a vulcanizing agent, placing the mixture into a mixing roll for mixing, adding a pretreated accelerant in the mixing process for continuous mixing, and prolonging the mixing time to 1.5 times of the common mixing time so as to achieve the purpose of uniformly dispersing the accelerant and obtain a mixture;
step three, preparing modified zinc oxide: adding zinc oxide into a roasting furnace, roasting for 2-3.5h at the temperature of 1850-;
and step four, vulcanization finishing, namely putting the mixture obtained in the step two and the modified borax zinc oxide obtained in the step three after uniformly mixing and stirring in a mold for vulcanization forming, heating the temperature of a male mold to 168-fold 178 ℃, heating the temperature of a female mold to 180-fold 190 ℃, setting the pressure to 90-120Kg/cm2, vulcanizing for 120-fold 145s to obtain the vulcanized rubber composition material, finishing the vulcanized rubber composition material, removing burrs and finally preparing the high-damping rubber composition material with a smooth surface.
Compared with the prior art, the invention has the following beneficial effects: the high-damping rubber prepared by the invention has excellent processing performance, the damping coefficient is 5-8 times of that of the conventional damping rubber, the shock absorption and noise reduction effects are greatly improved, and meanwhile, the rubber composition material and the preparation method have simple steps and convenient operation and are suitable for industrial production.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The high-damping rubber composition material comprises the following raw materials in parts by weight: 100 parts of butyl rubber, 20-50 parts of carbon black, 5-25 parts of polyisobutylene, 2-7 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-3 parts of a dispersing agent, 2-5 parts of an anti-aging agent, 1-2 parts of a vulcanizing agent and 1-3 parts of an accelerator; the vulcanizing agent can be any one of a sulfur-containing accelerator, benzoyl peroxide, a quinone oxime compound, a polysulfide polymer, urethane and a maleimide derivative; stearic acid is slightly soluble in cold water, soluble in alcohol, acetone, and easily soluble in benzene, chloroform, diethyl ether, carbon tetrachloride, carbon disulfide, amyl acetate and toluene; the dispersant can be selected from one or more of oxidized homopolymer, ethylene-acrylic acid copolymer, ethylene-vinyl acetate copolymer and low molecular ionomer.
During preparation, a proper amount of isobutene and a small amount of isoprene are mixed and smelted to prepare the nitrile rubber for later use; placing the prepared nitrile rubber into a plasticator for plastication, adding polyisobutylene, stearic acid, an anti-aging agent and a vulcanizing agent, placing the mixture into a mixing roll for mixing, adding a pretreated accelerant in the mixing process for continuous mixing, and prolonging the mixing time to 1.5 times of the common mixing time so as to achieve the purpose of uniformly dispersing the accelerant and obtain a mixture; adding zinc oxide into a roasting furnace, roasting for 2-3.5h at the temperature of 1850-; and (3) placing the mixture obtained in the step (II) and the modified borax zinc oxide obtained in the step (III) after uniformly mixing and stirring in a mold for vulcanization molding, heating the temperature of a male mold to 168-fold 178 ℃, the temperature of a female mold to 180-fold 190 ℃, setting the pressure to 90-120Kg/cm2, and vulcanizing for 120-fold 145s to obtain the vulcanized rubber composition material, trimming the vulcanized rubber composition material, removing burrs, and finally obtaining the high-damping rubber composition material with a smooth surface.
Example 1
The high-damping rubber composition material is composed of 100 parts of butyl rubber, 20 parts of carbon black, 5 parts of polyisobutylene, 2 parts of zinc oxide, 0.5 part of stearic acid, 1 part of dispersing agent, 2 parts of anti-aging agent, 1 part of vulcanizing agent and 1 part of accelerating agent.
Example 2
The high-damping rubber composition material is composed of 100 parts of butyl rubber, 50 parts of carbon black, 25 parts of polyisobutylene, 7 parts of zinc oxide, 2 parts of stearic acid, 3 parts of a dispersing agent, 5 parts of an anti-aging agent, 2 parts of a vulcanizing agent and 3 parts of an accelerating agent.
Example 3
Mixing and smelting a proper amount of isobutene and a small amount of isoprene to prepare nitrile rubber for later use; putting 100 parts of prepared nitrile rubber into a plasticator for plastication, adding 5 parts of polyisobutylene, 0.5 part of stearic acid, 2 parts of an anti-aging agent and 1 part of a vulcanizing agent, putting into a mixing roll for mixing, adding 1 part of a pretreated accelerant in the mixing process, continuing mixing, and prolonging the mixing time to 1.5 times of the common mixing time so as to achieve the purpose of uniformly dispersing the accelerant and obtain a mixture; adding zinc oxide into a roasting furnace, roasting at 1850 ℃ for 2h, then adding 2 parts of heated zinc oxide into a rotary grinder while the zinc oxide is hot, removing surface impurities by high-speed stirring and grinding, adding the zinc oxide into purified water, performing ultrasonic oscillation for 3h, washing with water until the zinc oxide is neutral, drying, adding 20 parts of carbon black with corresponding components, uniformly stirring and grinding, finally adding 1 part of dispersing agent into the sieved fine powder, and uniformly mixing and stirring to obtain modified borax zinc oxide; and (3) putting the mixture obtained in the step two and the modified borax zinc oxide obtained in the step three after uniformly mixing and stirring in a mould for vulcanization forming, heating the temperature of a male mould to 168 ℃, heating the temperature of a female mould to 180 ℃, setting the pressure to be 90Kg/cm2, vulcanizing for 120s to obtain a vulcanized rubber composition material, trimming the vulcanized rubber composition material, removing burrs, and finally obtaining the high-damping rubber composition material with a smooth surface.
The hardness of the prepared high-damping rubber composition material is 9 and the Young modulus is 0.9MPA through detection.
Example 4
Mixing and smelting a proper amount of isobutene and a small amount of isoprene to prepare nitrile rubber for later use; putting 100 parts of prepared nitrile rubber into a plasticator for plastication, adding 10 parts of polyisobutylene, 1 part of stearic acid, 2.5 parts of an anti-aging agent and 2 parts of a vulcanizing agent, putting into a mixing roll for mixing, adding 1.5 parts of a pretreated accelerant in the mixing process, continuing mixing, and prolonging the mixing time to 2 times of the common mixing time so as to achieve the purpose of uniformly dispersing the accelerant and obtain a mixture; adding zinc oxide into a roasting furnace, roasting for 3h at 1950 ℃, then adding 3 parts of heated zinc oxide into a rotary grinding machine while the zinc oxide is hot, removing surface impurities by high-speed stirring and grinding, adding the zinc oxide into purified water, performing ultrasonic oscillation for 3.5h, washing with water until the zinc oxide is neutral and drying, adding 25 parts of carbon black of corresponding components, uniformly stirring and grinding, finally adding 2 parts of dispersing agent into the sieved fine powder, and uniformly mixing and stirring to obtain modified borax zinc oxide; and (3) putting the mixture obtained in the step two and the modified borax zinc oxide obtained in the step three after uniformly mixing and stirring in a mould for vulcanization forming, heating the temperature of a male mould to 178 ℃, heating the temperature of a female mould to 188 ℃, setting the pressure to be 110Kg/cm2, and vulcanizing for 145s to obtain a vulcanized rubber composition material, trimming the vulcanized rubber composition material, removing burrs, and finally obtaining the high-damping rubber composition material with a smooth surface.
The hardness of the prepared high-damping rubber composition material is 9.2 through detection, and the Young modulus is 0.98 MPA.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The high-damping rubber composition material is characterized in that the raw materials of the ultra-high hardness rubber comprise the following components in parts by weight: 100 parts of butyl rubber, 20-50 parts of carbon black, 5-25 parts of polyisobutylene, 2-7 parts of zinc oxide, 0.5-2 parts of stearic acid, 1-3 parts of a dispersing agent, 2-5 parts of an anti-aging agent, 1-2 parts of a vulcanizing agent and 1-3 parts of an accelerator.
2. The high damping rubber composition material of claim 1, wherein the vulcanizing agent is selected from any one of sulfur-containing accelerators, benzoyl peroxide, quinone oxime compounds, polysulfide polymers, urethanes, and maleimide derivatives.
3. The high damping rubber composition material according to claim 1, characterized in that: the stearic acid is slightly soluble in cold water, soluble in alcohol, acetone, and easily soluble in benzene, chloroform, diethyl ether, carbon tetrachloride, carbon disulfide, amyl acetate and toluene.
4. The high damping rubber composition material according to claim 1, characterized in that: preferably, the polyisobutylene is 15 parts.
5. The high damping rubber composition material according to claim 1, characterized in that: the dispersant can be selected from one or more of oxidized homopolymer, ethylene-acrylic acid copolymer, ethylene-vinyl acetate copolymer and low molecular ionomer.
6. The method for preparing the high damping rubber composition material according to claim 1, characterized in that the method comprises the following steps:
step one, preparing nitrile rubber, namely mixing and smelting a proper amount of isobutene and a small amount of isoprene to prepare the nitrile rubber for later use;
secondly, placing the prepared nitrile rubber into a plasticator for plastication, adding polyisobutylene, stearic acid, an anti-aging agent and a vulcanizing agent, placing the mixture into a mixing roll for mixing, adding a pretreated accelerant in the mixing process for continuous mixing, and prolonging the mixing time to 1.5 times of the common mixing time so as to achieve the purpose of uniformly dispersing the accelerant and obtain a mixture;
step three, preparing modified zinc oxide: adding zinc oxide into a roasting furnace, roasting for 2-3.5h at the temperature of 1850-;
and step four, vulcanization finishing, namely putting the mixture obtained in the step two and the modified borax zinc oxide obtained in the step three after uniformly mixing and stirring in a mold for vulcanization forming, heating the temperature of a male mold to 168-fold 178 ℃, heating the temperature of a female mold to 180-fold 190 ℃, setting the pressure to 90-120Kg/cm2, vulcanizing for 120-fold 145s to obtain the vulcanized rubber composition material, finishing the vulcanized rubber composition material, removing burrs and finally preparing the high-damping rubber composition material with a smooth surface.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111635704A (en) * | 2020-06-19 | 2020-09-08 | 常州驰科光电科技有限公司 | Double-constrained-layer damping material |
CN112094463A (en) * | 2020-09-27 | 2020-12-18 | 烟台橡研材料科技有限公司 | High-damping sound-absorbing rubber and preparation method thereof |
CN113308058A (en) * | 2020-02-26 | 2021-08-27 | 中国石油化工股份有限公司 | Butyl rubber vulcanized composition for damping material, vulcanized butyl rubber, and preparation method and application thereof |
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CN110014708A (en) * | 2019-03-12 | 2019-07-16 | 天津市浩迪橡塑科技有限公司 | Dedicated cladded type foaming damping piece of a kind of car door and preparation method thereof |
CN110128718A (en) * | 2019-05-05 | 2019-08-16 | 浙江百朗士橡塑科技有限公司 | A kind of nitrile rubber of low compression set and preparation method thereof |
CN110423411A (en) * | 2019-07-18 | 2019-11-08 | 伟能(广东)新材料有限公司 | A kind of lightweight damping shock absorption glue and preparation method thereof |
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Patent Citations (4)
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CN109575455A (en) * | 2018-11-16 | 2019-04-05 | 中国第汽车股份有限公司 | A kind of low smell environmental-protection damp film and preparation method thereof |
CN110014708A (en) * | 2019-03-12 | 2019-07-16 | 天津市浩迪橡塑科技有限公司 | Dedicated cladded type foaming damping piece of a kind of car door and preparation method thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113308058A (en) * | 2020-02-26 | 2021-08-27 | 中国石油化工股份有限公司 | Butyl rubber vulcanized composition for damping material, vulcanized butyl rubber, and preparation method and application thereof |
CN113308058B (en) * | 2020-02-26 | 2022-10-21 | 中国石油化工股份有限公司 | Butyl rubber vulcanized composition for damping material, vulcanized butyl rubber, and preparation method and application thereof |
CN111635704A (en) * | 2020-06-19 | 2020-09-08 | 常州驰科光电科技有限公司 | Double-constrained-layer damping material |
CN112094463A (en) * | 2020-09-27 | 2020-12-18 | 烟台橡研材料科技有限公司 | High-damping sound-absorbing rubber and preparation method thereof |
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Application publication date: 20200207 |